Make the corners of your cornice by.
Diy window cornice foam board.
To cover the boards cut a piece of batting fabric 10 wider and 10 longer than your foam box including the returns.
Learn how to make a fabric covered window cornice.
Set a straightedge across the foam board at the desired valance height.
Full post with supply list and.
Score the board with a utility knife.
First you need to measure the width of your window and decide how deep you need to make your cornice board and how tall you want it.
Work your way to the ends of the box snipping and folding at the corners where necessary.
Cut 4 pieces of foam board 3 inches wide and 11 inches or the height of your cornice tall.
Starting in the middle wrap the batting fabric toward the back as tight as possible and secure in place with nails.
Measure the outside width of the window including the frame or wood trim around it.
Cut out the length and width of foam board.
Instead a cornice is an upholstered board that is attached to the wall above your window.
Cut 4 small pieces from 1 3 inch piece of foam board and use them as stabilizers for the side of the cornice.
Add 1 5 inches and mark that.
Using hot glue secure 2 smaller pieces to each side of the front cornice board.
Feb 19 2019 explore poppy khan s board window cornice diy on pinterest.
Measure the length of your window and add a foot to that.
How to make a cornice board valance from foam insulation 1.
An easy window treatment that s not permanent and costs just a few dollars.
Figure out the width that you want the cornice to be.
Following the directions of the foam core board tutorials i built my cornices from my foam panels.
In this way cornices provide a more structured window treatment option than valences do while also creating interest through the fabric that you use.
I used an exacto.
For my kitchen window i needed a 46 width.
On the other hand a cornice is a hard treatment.